/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.dmetasoul.lakesoul.lakesoul.local.arrow.writers;

//import org.apache.arrow.vector.complex.StructVector;
//import org.apache.flink.annotation.Internal;
//import org.apache.flink.table.data.ArrayData;
//import org.apache.flink.table.data.GenericRowData;
//import org.apache.flink.table.data.RowData;
//
///**
// * {@link ArrowFieldWriter} for Row.
// */
//@Internal
//public abstract class RowWriter<T> extends ArrowFieldWriter<T> {
//
//    public static RowWriter<RowData> forRow(
//            StructVector structVector, ArrowFieldWriter<RowData>[] fieldsWriters) {
//        return new RowWriterForRow(structVector, fieldsWriters);
//    }
//
//    public static RowWriter<ArrayData> forArray(
//            StructVector structVector, ArrowFieldWriter<RowData>[] fieldsWriters) {
//        return new RowWriterForArray(structVector, fieldsWriters);
//    }
//
//    // ------------------------------------------------------------------------------------------
//
//    protected final ArrowFieldWriter<RowData>[] fieldsWriters;
//    private final GenericRowData nullRow;
//
//    private RowWriter(StructVector structVector, ArrowFieldWriter<RowData>[] fieldsWriters) {
//        super(structVector);
//        this.fieldsWriters = fieldsWriters;
//        this.nullRow = new GenericRowData(fieldsWriters.length);
//    }
//
//    abstract boolean isNullAt(T in, int ordinal);
//
//    abstract RowData readRow(T in, int ordinal);
//
//    @Override
//    public void doWrite(T in, int ordinal) {
//        RowData row;
//        if (isNullAt(in, ordinal)) {
//            row = nullRow;
//            ((StructVector) getValueVector()).setNull(getCount());
//        } else {
//            row = readRow(in, ordinal);
//            ((StructVector) getValueVector()).setIndexDefined(getCount());
//        }
//        for (int i = 0; i < fieldsWriters.length; i++) {
//            fieldsWriters[i].write(row, i);
//        }
//    }
//
//    @Override
//    public void finish() {
//        super.finish();
//        for (ArrowFieldWriter<?> fieldsWriter : fieldsWriters) {
//            fieldsWriter.finish();
//        }
//    }
//
//    @Override
//    public void reset() {
//        super.reset();
//        for (ArrowFieldWriter<?> fieldsWriter : fieldsWriters) {
//            fieldsWriter.reset();
//        }
//    }
//
//    // ------------------------------------------------------------------------------------------
//
//    /**
//     * {@link RowWriter} for {@link RowData} input.
//     */
//    public static final class RowWriterForRow extends RowWriter<RowData> {
//
//        private RowWriterForRow(
//                StructVector structVector, ArrowFieldWriter<RowData>[] fieldsWriters) {
//            super(structVector, fieldsWriters);
//        }
//
//        @Override
//        boolean isNullAt(RowData in, int ordinal) {
//            return in.isNullAt(ordinal);
//        }
//
//        @Override
//        RowData readRow(RowData in, int ordinal) {
//            return in.getRow(ordinal, fieldsWriters.length);
//        }
//    }
//
//    /**
//     * {@link RowWriter} for {@link ArrayData} input.
//     */
//    public static final class RowWriterForArray extends RowWriter<ArrayData> {
//
//        private RowWriterForArray(
//                StructVector structVector, ArrowFieldWriter<RowData>[] fieldsWriters) {
//            super(structVector, fieldsWriters);
//        }
//
//        @Override
//        boolean isNullAt(ArrayData in, int ordinal) {
//            return in.isNullAt(ordinal);
//        }
//
//        @Override
//        RowData readRow(ArrayData in, int ordinal) {
//            return in.getRow(ordinal, fieldsWriters.length);
//        }
//    }
//}
